My first real job was at Livermore. Here is a nice story of most of the time I was there. Thanks mostly to Livermore I encountered a bunch of early computers. Here are notes on some of those machines by Seymour Cray and more from IBM, and how they divided.
Later I was at Tymshare where we did several interesting things such as Tymnet. We also did major enhancements to available operating systems:
A stale CV